Arm-rest for books.



Patented May I3, I902, J. BARKER.

ARM BEST FOR BOOKS.

(Application filed Aug. 14, 1901.)

(No Model.)

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' UNITED STATES,

I PATENT JAMES BARKER, OF DETROIT, MICHIGAN.

ARM-REST FOR BOOKS,

SPECIFICATION forming part Of Letters Patent No. 70,QO6, dated May 13,1902.

A Application filed August 14, 1901- Serial No. 72,032. (No'modeh) Iprovements in arm-rests for books; and it con sists in the constructionof an arm-rest adapted to be used upon the end of a book and in theconstruction and arrangementhereinafter more fully set forth,illustrated in the drawings, and particularly pointed out in the claims.

In the drawings, Figure 1 is a perspective view of my improved device asapplied in use to the lower edge of a book, such as a ledger. Fig. 2 isa detached perspective view of the support for the rest-plate, showingthe 'hook for holding the support in proper relation to the end of thebook. Fig.' 3 is a perspective view showing the guide-bars and thesliding blocks thereon forming a double adjustable support for'thearm-rest. Fig. 4 is an edge elevation of the longitudinal guide-bar andthe sliding block thereon.

A represents an open book, of which B represents the covers, the bookbeing of known construction. Between the covers and near the back is across-bar C, over which engages a hook=plate D, which hook-plate extendsup over the base-plate or base E, which is adapted to engage the backofthe book, either inside or outside, as maybe desired. In the construction herein illustrated I have shown it as adapted to engage on theoutside of the back of the book. Extending upward from the end of thebase-plate E is a standard F, the

1 upper end of which is secured to a longitudinal guide-bar G.

H is a block sliding-on the guide-bar, and as the bar is of suificientlength to extend across the back and .upon both sides thereof it isobvious thatthe block may be slid along across the end of the book andbeside the end of either cover. Secured to the block H is a transverseguide-bar I, upon which slidingly engages a rest-plate block J, thisblock being movable on its guide-bar to and from the end of the book.

K is a rest-plate for the arm which is hinged to the rest-plate block J.The hinge I have shown embodies a multiple of hinge-sections a," hingedtogether and'to the arm-rest block and the arm-rest, so as to make whatI call a multiple hinge. This particular construction of multiple orextensible hinge is not necessary, as any form ofdevice which will enable the arm-rest to turn about various points or to hinge 'at variousheights above its block will'answer the requirements of my invention.

The arm-rest preferably has an extension L at itsinner edge extendingbeyondits hinged joint, so that it may be engaged'o'ver the lower edgeof the leaves of the book when open, as plainly shown in Fig. 1. l

The parts being thus constructed, theiroperation is as follows: The bookbeing open, in order to turn the leaves freely the operator moves thearm-rest K so that its extension L will be clear of the leaves of thebook, This is accomplished by sliding the. arm-rest and its block .1upon the transverse guide-bar I. The leaves may then be turned freelywithout contact with the arm-rest until the desired point is reached,and then-the rest can be again without any binding or straining of thehingejoint.

When it is desired to use the arm-rest upon the opposite leaf to thatupon which it is shown in Fig. 1, the operator simply slidesthe block Hto the right, which of course will carry with it the arm-rest, and thenturns the rest upon its-hinge to the right, and it will be applied tothe right-hand part of the book in the same manner as now shown in Fig.1 as applied to the left.

To disengage the device from the book, the hook D is detached from thecross-bar 0, when it is perfectly free to be removed without furthermanipulation.

What I claim as my invention is--- 1. The combination with a book, of amember secured to'the end thereof, a support detachably connected tosaid member, and an arm-rest mounted upon the support for longitudinalmovement along the edge of the book.

2. The combination with a book, of a trans.- verse member secured to thebook at one end thereof, a support detachably connected to said member,a longitudinal guide-bar upon the support, an arm-rest, and connectionsbetween said guide-bar and arm-rest permitting movement of the latteralong the lower edge of the book.

3. In an arm-restforbooks,the combination of a support, a longitudinalguide-bar thereon, a sliding block movable on the guide-bar, atransverse guide-bar on the sliding block, the arm-rest block slidingthereon, and the multiple-hinged arm-rest on said block.

4. In an arm-rest for books,the combination of a support, a longitudinalguide-bar thereon, a sliding block movable on the guide-bar, atransverse guide-bar on the sliding block, the arm-rest block sliding onthe transverse guide-bar and the slidingly-hinged arm-rest on saidblock.

5. In an arm-rest for books, a support for the hinged arm-restcomprising a base adapted to engage the book-cover, a transverse bar atthe end of the book, and a hook adapted to engage the bar.

6. In an arm-rest for books,the combination of abase adapted to engagebeneath the bookcover, a transverse bar at the end of the book extendingacross between the covers, an upright hook engaging the bar, a standardbeside said hook, and an arm-rest supported upon the standard.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES BARKER.

Witnesses:

M. ODoonEnTY, II. 0. SMITH.

